NAICS 333998: All Other Miscellaneous General Purpose Machinery Manufacturing
This U.S. industry comprises establishments primarily engaged in manufacturing general purpose machinery (except ventilating, heating, air-conditioning, and commercial refrigeration equipment; metalworking machinery; engines, turbines, and power transmission equipment; pumps and compressors; material handling equipment; power-driven handtools; welding and soldering equipment; packaging machinery; industrial process furnaces and ovens; fluid power cylinders and actuators; and fluid power pumps and motors).

Illustrative Examples:

Automatic fire sprinkler systems manufacturing
Baling machinery (e.g., paper, scrap metal) manufacturing
Bridge and gate lifting machinery manufacturing
Centrifuges, industrial and laboratory-type, manufacturing
Cremating ovens manufacturing
General purpose-type sieves and screening equipment manufacturing
Hydraulic and pneumatic jacks manufacturing
Industrial and general purpose-type filters (except internal combustion engine, warm air furnace) manufacturing
Scales and balances manufacturing

ExioML sector: Medical, precision and optical instruments, watches and clocks (33)
Region: US | Year: 2022
Sector value added: 163416.090875 M EUR | Employment: 242.560449186 thousand persons
Sector GHG emissions: 6744317153.5 kg CO2 eq | Energy carrier net total: 172060.328352 TJ | Carbon intensity: 0.041270826620487776

Company: Proto Labs Inc
operates as a technology-enabled company. The Company provides rapid manufacturing of low-volume 3D printed, CNC-machined, sheet metal, and injection-molded custom parts for prototyping and short-run production.

Company: Boc Group Inc
The BOC Group Limited manufactures and supplies industrial and medical gases. The Company offers atmospheric gases which includes oxygen, nitrogen, and argon, as well as provides refrigerant and drinks dispense gases.